Question

C++ Programming

  You are to develop a program to read Baseball player statistics from an input file. Each player should bestored in a Player object. Therefore, you need to define the Player class. Each player will have a firstname, last name, a position (strings) and a batting average (floating point number).
Your class needs to provide all the methods needed to read, write, initialize the object.
Your data needs to be stored in an array of player objects. The maximum size of the array should be 50for this version of the program. Make sure that you 1) keep track of how many players have beenstored in the array and, 2) you do not overwrite the end of the array if there happens to be more than50 players in the data file.
An input data file will be used to provide the data.  Each player is written in the file, one per line, in thefollowing form
              FIRSTNAME LASTNAME POSITION BATTINGAVERAGE
Note that the data is separated by blanks only. There are no commas or other separator characters inthe input data.  You will need to create your own file for testing.

Make sure to use detailed comments

Summary of Operation
 Prompt the user for the input and output file names. DO NOT hardcode file names into yourprogram.

 Open input file

 Read each player and store them in an array of Player objects

 Keep track of the number of players in the array

 Open an output file

 Write each player from the array into the output file, along with any other output required bythe assignment.

 Remember to close your files when done with them

Make sure to use detailed comments

Example Input:

Chipper Jones 3B 0.303

Rafael Furcal SS 0.281

Hank Aaron RF 0.305

Example Output:

There were 3 players in the input data file:

Jones, Chipper: 3B (0.303)

Furcal, Rafael: SS (0.281)

Aaron, Hank: RF (0.305

Answer 1

C++ Program:

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>

using namespace std;

//Player class
class Player
{
    //Private variables
    private:
        string firstName, lastName, position;
        float battingAvg;

    public:

        //Default constructor
        Player()
        {
            firstName = "";
            lastName = "";
            position = "";
            battingAvg = 0;
        }

        //Parameterized constructor
        Player(string fname, string lname, string pos, float bavg)
        {
            firstName = fname;
            lastName = lname;
            position = pos;
            battingAvg = bavg;
        }

        //Function that returns player info
        string getPlayer()
        {
            stringstream ss;

            //Returning player details in the specified format
            ss << lastName << ", " << firstName << ": " << position << " (" << battingAvg << ")";

            return ss.str();
        }
};

//Main function
int main()
{
    string tfname, tlname, tpos;
    float tbatAvg;

    //Array to hold Player objects
    Player players[50];

    int playerCount = 0, i;

    string ipFile, opFile;

    //Reading input file name
    cout << "\n Input file name: ";
    cin >> ipFile;

    //Reading output file name
    cout << "\n Output file name: ";
    cin >> opFile;

    //Opening input file
    fstream fin(ipFile, ios::in);

    //Checking input file existence
    if(!fin.good())
    {
        cout << "\n Error!! Cannot open input file.... Exiting.... \n";
        return -1;
    }

    //Reading data from file
    while(fin.good() && playerCount < 50)
    {
        //Fetching data
        fin >> tfname >> tlname >> tpos >> tbatAvg;

        //Creating object
        Player obj(tfname, tlname, tpos, tbatAvg);

        //Storing in array
        players[playerCount] = obj;

        //Incrementing player count
        playerCount++;
    }

    //Opening output file
    fstream fout(opFile, ios::out);

    //Writing data to output file
    for(i=0; i<playerCount; i++)
    {
        //Fetching each player data
        fout << players[i].getPlayer() << endl;
    }

    cout << endl << " Output file generated.... " << endl;

    //Closing files
    fin.close();
    fout.close();

    cout << endl << endl;
    return 0;
}

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Sample Output: